Traffic fatalities linked to pot are up sharply in Colorado
Federal and state data show that the number of drivers involved in fatal crashes in Colorado who tested positive for marijuana has more than doubled since 2013.
A Denver Post analysis of the data and coroner reports provides the most comprehensive look yet into whether roads in the state have become more dangerous since the drug's legalization.
It shows that Increasingly potent levels of marijuana were found in positive-testing drivers who died in crashes in Front Range counties.
The trends coincide with the legalization of recreational marijuana in Colorado.
However, Colorado transportation and public safety officials say the rising number of pot-related traffic fatalities cannot be definitively linked to legalized marijuana.
The industry counters that the data is imprecise and does not definitively link fatal crashes to marijuana use.